Deck footings provide basis for bridges because they support posts that support floor deck. A bridge can slowly sink into ground or show damage after a significant change in ground when soles fail because of improper installation. proper spacing soles ensure that a bridge has in various amounts of weight.
There are several types of deck footings, and type you need to install is dictated by local building codes. In any case, spacing between flanges depends on size and shape of bridge and number of posts should support soles. Heavier is a platform soles more it usually takes to prevent structure from collapsing. Terraces with Jacuzzis, for example, have generally placed close soles to evenly distribute amount of weight that each foot door.
Consult with a contractor or structural engineer to determine spacing for soles if you intend to build or design your own deck. Some companies offer loans deck plans to use for do-it-yourself. However, spacing for soles on these plans will have to be changed if you change design. Local climatic conditions also affect construction of bridge. For example, bridges in areas that receive heavy snowfall need to be properly spaced deck footings to support potentially heavy snow loads.
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